采用测量压力脉动，通过单片机等组成的测试系统进行数据处理，实现了对两液压系流量脉动率的对比测试，并给出了该方法的测试原理及电路的软、硬件设计． By measuring the pressure pulsation, the data processing is carried out by the test system consisting of a singlechip and so on. The comparison of the pulsation rate of the two hydraulic systems is achieved. The test principle and the hardware and software design of the circuit are also given.